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Looking to swap my 86 from a 2.8 to a 2.5. I have a 2.5l motor out of a 86 and need to track down a harness for it. Is there a stand alone harness for them? If I track down a stock harness do I need the chassis harness? Is there a simple way to wire it up? It’s for a rock crawler I don’t need ac or anything just the basics